福建稻麦科技
福建稻麥科技
복건도맥과기
Fujian Science and Technology of Rice and Wheat
2015年
3期
32-34
,共3页
褐飞虱%防治效果%药剂筛选
褐飛虱%防治效果%藥劑篩選
갈비슬%방치효과%약제사선
brown paddy plant hopper%control effects%screening on pesticides
选用50%烯啶虫胺可溶性粒剂、25%吡蚜酮可湿性粉剂、9.7%乙虫腈悬浮剂和25%噻虫嗪水分散粒剂防治水稻褐飞虱的田间药效试验。结果表明，每667m2使用50%烯啶虫胺可溶粒剂4g，药后1d和3d对水稻褐飞虱的防效分别为25.70%、81.22%，速效性稍差，但7d和14d对水稻褐飞虱的防效达97.06%、88.32%，明显优于其他药剂，持效作用突出；每667m2使用25%吡蚜酮可湿性粉剂20g和9.7%乙虫腈悬浮剂31ml，药后14d的防效均达86%以上；3种药剂防治水稻褐飞虱均具有较好的防效性和持效性，且对水稻安全，在生产上可作为防治水稻褐飞虱的药剂交替使用。
選用50%烯啶蟲胺可溶性粒劑、25%吡蚜酮可濕性粉劑、9.7%乙蟲腈懸浮劑和25%噻蟲嗪水分散粒劑防治水稻褐飛虱的田間藥效試驗。結果錶明，每667m2使用50%烯啶蟲胺可溶粒劑4g，藥後1d和3d對水稻褐飛虱的防效分彆為25.70%、81.22%，速效性稍差，但7d和14d對水稻褐飛虱的防效達97.06%、88.32%，明顯優于其他藥劑，持效作用突齣；每667m2使用25%吡蚜酮可濕性粉劑20g和9.7%乙蟲腈懸浮劑31ml，藥後14d的防效均達86%以上；3種藥劑防治水稻褐飛虱均具有較好的防效性和持效性，且對水稻安全，在生產上可作為防治水稻褐飛虱的藥劑交替使用。
선용50%희정충알가용성립제、25%필아동가습성분제、9.7%을충정현부제화25%새충진수분산립제방치수도갈비슬적전간약효시험。결과표명，매667m2사용50%희정충알가용립제4g，약후1d화3d대수도갈비슬적방효분별위25.70%、81.22%，속효성초차，단7d화14d대수도갈비슬적방효체97.06%、88.32%，명현우우기타약제，지효작용돌출；매667m2사용25%필아동가습성분제20g화9.7%을충정현부제31ml，약후14d적방효균체86%이상；3충약제방치수도갈비슬균구유교호적방효성화지효성，차대수도안전，재생산상가작위방치수도갈비슬적약제교체사용。
In order to find out the control effects of 4 kinds of pesticides for brown paddy plant hopper, the experiments were conducted by using 50% nitenpyram water soluble granual (NWSG) , 25% pymetrozime wettable powder (PWP), 9.7% ethiprole suspension concentrate (ESC), and 25% thiamethoxam water dispersible granules (TWDG), respectively. The results showed that, the control efficacy of 50% NWSG on brown paddy plant hopper at dosage of 4 g/667m2 were 25.70% and 81.22% respectively after treatment for 1 and 3 days, the swift effect of NWSG was worse; but after treatment for 7 and 14 days, the control efficacy were 97.06% and 88.32% respectively, there was a significant different among PWP, ESC and TWDG, the durable effect of NWSG was prominent; Followed the control efficacy of 25% PWP and 9.7% ESC at dosage of 20 g/667m2 and 31 ml/667m2 respectively up to 86% after treatment 14 days. Three pesticides had better control and holding effects for controlling brown paddy plant hopper and were safe in rice production, they can be used interchangeable as pesticides to control brown paddy plant hopper.
